1
2
by Cartwright
Published 2007
3
Published 2008
4
Published 2008
5
Published 1991
6
by Gindikin
Published 2007
7
by Dodd, 1968-
Published 2004
8
Published 2004
9
Published 1993
10
by Elman
Published 2006
11
by Dear
Published 2006
12
by Erickson
Published 2005
13
by Bell
Published 2005
14
15
by Knight
Published 2006
16
17
Published 2000
18
by Polanyi
Published 1958
19
by Gribbin
Published 2002
20
by Gribbin
Published 2005